Analysis of Energy Consumption for Biomass Drying Process

Authors

DOI:

https://doi.org/10.17770/etr2015vol2.625

Keywords:

biomass, dryer, energy consumption, moisture content

Abstract

This study is dedicated to the analysis of the drying process energy consumption. In order to evaluate the main energetic processes that consume the most energy, the energy consumption of each individual drying process with and without air recirculation was modelled. The model shows that drying agent (air) recirculation is not an energy-saving operation, since it increases the total electricity and heat consumption. Recirculation of the drying agent increases the moisture content of the drying agent at the dryer entrance, which increases the need for fresh air in the dryer so that it can absorb the evaporating moisture from the dried material. An increased flow of the drying agent in the dryer increases the heat and electricity consumption.

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References

Mujumdar A.S. Principles, classification, and selection of dryers. Handbook of Industrial Drying. – London: Taylor and Francis Group, 2006. – 1282 p.

Chen D., Zheng Y., Zhu X. Determination of effective moisture diffusivity and drying kinetics for poplar sawdust by thermogravimetric analysis under isothermal condition // Bioresource Technology. – No. 107 (2012) pp. 451 – 455.

George D. Basic wood properties. Forest products measurements and conversion factors. – Washington: University of Washington, College of Forest Resources, 1994. - 12 p.

George D. Chips, sawdust, planer shavings, bark and hog fuel. Forest products measurements and conversion factors. – Washington: University of Washington, College of Forest Resources, 1994. - 15 p.

Fagernas L., Brammer J., Wilen C., Lauer M., Verhoeff F. Drying of biomass for second generation synfuel production // Biomass and Bioenergy. – No. 34 (2010) pp. 1267 – 1277.

Simpson T.W Equilibrium Moisture Content of Wood in Outdoor Locations in the United States and Worldwide. – Madison: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2008. – 11 p.

Simpson W., Tschernitz J. Importance of thickness variation in kiln drying red oak lumber. – Madison: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, 2001. – 9 p.

Wood density table // http://www.aqua-calc.com/page/density-table // [15.05.2012.]

Marouslis Z.B., Mujumdar S.A., Saravacos G.D. Spreadsheet-aided dryer design. Handbook of Industrial Drying. – London: Taylor and Francis Group, 2006. – 1282 p.

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Published

2015-06-17

How to Cite

[1]
E. Vigants, G. Vigants, I. Veidenbergs, D. Lauka, K. Klavina, and D. Blumberga, “Analysis of Energy Consumption for Biomass Drying Process”, ETR, vol. 2, pp. 317–322, Jun. 2015, doi: 10.17770/etr2015vol2.625.